import { init } from 'snabbdom/build/package/init'
import { h } from 'snabbdom/build/package/h'

// 1.导入模块
import { styleModule } from 'snabbdom/build/package/modules/style'
import { eventListenersModule } from 'snabbdom/build/package/modules/eventlisteners'

// 2.注册模块
const patch = init([
  styleModule,
  eventListenersModule
])

// 3.使用h()函数的第二个参数传入模块中使用的数据（对象）
let vnode = h('div', [
  h('h1', {style: {backgroundColor: 'red'}}, 'Hello'),
  h('p', {on: {click: eventHandler }}, 'World')
])

function eventHandler() {
  alert('Hello World')
}

let app = document.querySelector('#app')
patch(app, vnode)